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CVE-2024-6592

Watchguard Single Sign-on Client authentication bypass

9.1 CRITICALEPSS 1.17%
  1. Published25 Sept 2024

Description

An incorrect authorization vulnerability in the protocol communication between the WatchGuard Authentication Gateway (aka Single Sign-On Agent) on Windows and the WatchGuard Single Sign-On Client on Windows and MacOS allows an attacker with network access to forge communications to affected components. In the event an attacker has already gained network access, they could exploit this vulnerability to retrieve authenticated usernames and group memberships from the Single Sign-On Agent or send arbitrary account and group information to the Single Sign-On Agent for their host. This vulnerability cannot be used by an attacker to gain access to user credentials.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Watchguard Authentication Gateway≤ 12.10.2
Watchguard Single Sign-on Client≤ 12.5.4 · ≤ 12.7

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2024-6592 being actively exploited?

CVE-2024-6592 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.17%.

How severe is CVE-2024-6592?

CVE-2024-6592 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 1.17% probability of exploitation.

Which products are affected by CVE-2024-6592?

Affected products include Watchguard Authentication Gateway, Watchguard Single Sign-on Client.

How do I fix CVE-2024-6592?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-6592 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.